package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**JSR303自定义校验器
 * @author jialiangming
 * @create 2020-11-17 15:19
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set=new HashSet<>();
    //初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        //获取自定义注解的详细信息的值，给的信息必须是这些值
        int[] vals = constraintAnnotation.vals();
        for (int val : vals) {
            set.add(val);
        }

    }
    //判断是否校验成功

    /**
     *
     * @param value 需要校验的值
     * @param constraintValidatorContext
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext constraintValidatorContext) {
        return set.contains(value);
    }
}
